VIBRATIONAL SPECTRA AND NORMAL COORDINATE ANALYSIS OF TRICHLOROCYCLOPROPENIUM ION.
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Date
1965
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Ohio State University
Abstract
The Raman and infrared $(4000-200 cm^{-1})$ spectra of Trichlorocyclopropenium tetrachloro-aluminate, $C_{3}Cl_{2}^{+}AlCl^-_{A}$, have been studied. The Raman spectrum including polarization measurements was determined in liquid $SO_{2}$ solution. Assignment of the fundamental vibrations of $C_{3}Cl_{3}^{+}$ was made based on a $D_{3b}$ symmetry model, and normal coordinate analysis of the in-plane vibrations was carried out using the Urey-Bradley Force Field. The results show that the C-C stretching force constant for $C_{3}Cl_{3}^{+}$ is greater than for conventional aromatic species such as benzene.
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Author Institution: Department of Chemistry, The University of Wisconsin